Is russo1.ru valid?

Domain: russo1.ru

Valid: Yes, but should be blocked

This domain is valid and should be able to receive e-mail.

Tested MX: emx.mail.ru (217.69.139.180)

Using MX pointer emx.mail.ru from DNS with priority: 10

Block: Yes

You should block this domain for signups/registrations.

Disposable: No

This does not look like a temporary/disposable e-mail domain.

USE THE API, DO NOT SCRAPE THIS DATA

Raw API reason:

Anomalies detected

START USING FREE API